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17453 (1990 RQ9)
Classification: Main-belt Asteroid          SPK-ID: 2017453
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .195959109855385 9.3527e-08  
a 2.289429732931016 1.6534e-08 AU
q 1.840795120389402 2.1162e-07 AU
i 5.823671537423984 9.1219e-06 deg
node 208.7389384958359 5.9222e-05 deg
peri 134.701527796688 6.1703e-05 deg
M 356.365774814778 2.0386e-05 deg
tp 2457013.273171341340
(2014-Dec-21.77317134)
7.1724e-05 JED
period 1265.288045875864
3.46
1.3707e-05
3.753e-08
d
yr
n .2845201937799065 3.0822e-09 deg/d
Q 2.73806434547263 1.9774e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      835  
   data-arc span      10384 days (28.43 yr)  
   first obs. used      1986-06-26  
   last obs. used      2014-11-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .54113  
   data source      ORB  
   producer      Otto Matic  
   solution date      2015-Jan-08 02:35:32  

Additional Information
 Earth MOID = .83951 AU 
 T_jup = 3.567 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.2 mag n/a MPO266048  

17453 (1990 RQ9)          Discovered 1990-Sep-14 by Holt, H. E. at Palomar
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1990 RQ9 = 1999 CN69 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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